When should you void the MCAT

[artist27]

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So from what I've seen, post-exam feelings are never usually an accurate indication of how one actually ends up performing on the mcat. With that in mind, should voiding be only reserved for extreme cases (power outage, throwing up on the proctor, passing out, etc.)?
Reason I'm asking: I suspect by the time I apply I'm going to have ~3.45 cgpa. Obviously, I need a fairly high MCAT score to make up for this. I am planning on applying to DO and low tier MD schools, but what score is "enough" so to speak to offset my gpa? My highest practice score has been a 512 (aamc scored and NS1). Even if I end up scoring this on the real deal, is that even a high enough score? I was hoping for a little higher, but if I don't feel that the mcat went particularly well, should I void?
Btw, my exam is in two days 😀
Edit: Whoops, I meant to post this in MCAT discussions, but I guess this works too.

 

[Lucca]

512 will probably be slightly above the MCAT average for matriculants, so it's a competitive score. As you know, higher is better.

I would void if something seriously went wrong and you feel the test wont be representative of your abilities. A loud testing room isn't going to throw off your score. But, maybe having a really awful section where, say, you couldn't really answer half of a passage or more? That will probably be an unbalanced score and the anxiety of it will most likely throw off the next section, at least.

That being said. It's a judgement call. Like you said, feelings immediately following the exam are not very representative. I remember feeling great relief, then anxiety, then relief, then anxiety for weeks. Then relief again.